Packing.



man svi-nains rarnnr ortica.

GEORGE E. WRIEIDT, 0F NEW YGRK, N. Y.; WILLIAM A. KRUGER EXECUTOR 0F SAID WRIED'I', DECEASED.

PACKING.

Specification of Letters Patent.

Patented Nov. I9, i912.

To all whom 'it may concern:

Be it known that I, GEORGE E. WBIED'r, a .citizen of the United States, and a resident of-the city of New York, borough of Brooklyn, in the county of Kings and State of New York, haveinvented a new and Improved Packing, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved packing which is simple and durable in construction, very ei'ective in operation, more especially desi ed for use on piston rods,.valve stems an the like, and arranged to allow convenient adjustment with a viewto take up Wear.

For the purposenien'tioned, use is made of a tubular packing made in lsections and encircling the rod or stem, the sections being provided with conical ends, and rings having conical openings engaging the said conical ends for holding the sections togetherand pressing the same against the rod or stem.

A practical embodiment of the invention 251is represented inthe accompanying. draw ings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.. Y

Figure l is a lan view of the packing as applied to a stu ng box, parts being s hown in section; Fig. 2 vis a transverse section of the same on the line 2 2 of Fig. 1; Fig. 3

' is a pers ective view of one of the sections of the tn ular packing g.- and Fig. 4 is a face View of one of the packing rings.

. The stuffing box A is `provided with the usual wall A and is\ adapted to be closed at the outer end by a land B fastened in place by screws C,'an within the stuffing box A is arranged a tubular packlng D,

preferably madeof metal, and in longitudinal sections D encircling a. piston rod valve stem or a like partE extending cen'- v trally through the stuffing box A, as plainly indicated in Fig. 1. The tubular` packin D is provided lwith conical ends D2, D8, o which the conical end D2 is engaged by Va conical opening in a packing ring F seated against the inner wall A of the stufling box A. The conical end D3 is engaged by ka conical opening in a packing ring F seated against the inner end ofl the gland B,

` and when the gland B is screwed up then ressure is exerted against the packing rin and consequently againstthe packing Application filed February 28, 1912. Serial No. 680,4l88.

and the packing ring F to cause the packing rings Fand F to act on the conical ends D2, D3 thereby pressing the sectionsDl inward against the peripheral face of the rod or stem E. `Each of the packing rings F and F is provided on its peripheral face with a lmetallic packing ring Gr tting against the inner surfaceI of the stuihng box A so as to provide a tight joint between the said rings and the inner surface of the stuffing box'A. Washers H and H are interposed between the packing rings Fand F and the adjacent end faces of the! tubular packing D to permit of taking up wear by inserting more washers whenever it is deemed necessary. The packing rings F, F and washers H, H are made in sections to permit of placing the same in position on the rod or stein E. The tubular packing D is provided at the inner surface with grooves D, and each section D of the said packing D- is provided at one side with beveled lugs Ds and on the other side with beveled notches or recesses'D6 engaged by the lugs D5 of the next following section, so that the sections are held against longitudinal movement and are free to slide inward or outward to properly fit the peripheral face of the rod or stem E. A split ring I with overlapping ends lits into an annular groove D7 of the packing D to hold the sectionsfD in position.

The tubular packin D forms with the inner surface of the stu g box A an annular chamber .I for thepassage 'of the steam to outlet openings K, preferably`arran ed on opposite sides ofthe stuffing box and connect-ed by pipes to a condenser or other means for producing suction action in the chamber J to draw the steam out of the same and thus relieve the packing of pressure.

The packing shown and described is very I Having thus described my invention, I claim as new and desire to secure by Letters Patent: y

1. A packing, comprising a tubular cylindrical `body made in longitudinal sections and having an external annular roovefand reduced conical ends, shoulders being formed at the bases of the conical'ends, each section having grooves on its inner face and beveled lugs on one side and beveled recesses in its other side, a split ring in the oove of the body, sectional rings having annular exterior grooves and conical openings receiving the conical ends of the body, a packing ring in the groove of each of the sectional rings, and washers between the split rings and the shoulders of the body.

2. A packing, comprising a tubular cylindrical body made in longitudinal sections and having reduced conical ends, a shoulder 'being formed at the base of each conical end, a split ring in the groove of .the body,

"each of the sections having beveled lugs projecting from one side and, recesses vin its other side, split rings ,havin conical openings receiving the conical en of the body, and washers between the rings and the shouldersr of the body.

3. A packing, comprising a tubular cylindrical body made in longitudinal sections and having reduced conical ends, shoulders being formed at the base of the conical ends, each section having lugs on one side and recesses in its other side; and washers between the rings and the shoulders of the body. 4

In testimony whereof:` I have signed my name to this s ecification in the presence of two subscribing witnesses.

GEORGE E. wRiEDT.

Witnesses WILLIAM A. KRGEN, FREDERICK A. SCHNEIDER. 

